Dirac HD Sound® is a state-of-the-art digital audio performance enhancement technology that optimizes all types of sound systems outfitted with a loudspeaker or transducer, from home speakers and mobile devices to headphones. By correcting impulse and magnitude frequency response, Dirac HD Sound drastically improves musical staging, clarity, voice intelligibility, and a deeper, tighter bass. 

Dirac HD Sound® is tailored to each specific earphone or loudspeaker model based on meticulous acoustic measurements. Unlike EQ or effect-based solutions that just mask poor sound quality, Dirac HD Sound® offers fundamental audio performance improvements.


  • Genuine audio performance optimization with enhanced clarity
  • Customized for individual device measurements
  • Tailored (branded) sound character
  • A more natural and transparent sound
  • Improved bass range and definition
  • A more dynamic sound stage

Dirac HD Sound for Earphones

Dirac HD Sound for Loudspeakers